Difference from carbon steel

Alloy steel contains more other elements compared to carbon steel
Alloy steel refers to steel that contains not only silicon and manganese as alloying elements or deoxidizing elements, but also other alloying elements, some of which also contain certain non-metallic elements. According to the content of alloying elements in steel, it can be further divided into low alloy steel, medium alloy steel, and high alloy steel.
Carbon steel mainly refers to steel whose mechanical properties depend on the carbon content in the steel, and generally does not add a large amount of alloying elements, sometimes also known as plain carbon steel or carbon steel.
Carbon steel, also known as carbon steel, is an iron carbon alloy with a carbon content of WC less than 2%. Carbon steel generally contains small amounts of silicon, manganese, sulfur, and phosphorus in addition to carbon. According to its usage, carbon steel can be divided into three categories: carbon structural steel, carbon tool steel, and free cutting structural steel. Carbon steel can be divided into low carbon steel (WC ≤ 0.25%), medium carbon steel (WC 0.25% -0.6%), and high carbon steel (WC>0.6%) according to its carbon content [11]
Generally, carbon steel with higher carbon content has higher hardness and strength, but lower plasticity.